10. Anch electric pole casts a shadow of length 20 m at a time when a tree
of length 8 m. Find the height of the pole.
Hint. (height of the tree) : (length of its shadow)
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Let x be height of the electric pole.
Shadow of electric pole or tree at a certain time is proportional to its original length.
X/ 20 = 6 / 8
X = 6 / 8 × 20
X = 15 m.
Hence, height of the electric pole is 15 m.
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